<template>
  <div class="sidebar">
    <el-menu class="sidebar-el-menu" :default-active="onRoutes" :collapse="collapse" background-color="#324157"
             text-color="#bfcbd9" active-text-color="#20a0ff" unique-opened router>
      <template v-for="item in items">
        <template v-if="item.subs">
          <el-submenu :index="item.index" :key="item.index">
            <template #title>
              <i :class="item.icon"></i>
              <span>{{ item.title }}</span>
            </template>
            <template v-for="subItem in item.subs">
              <el-submenu v-if="subItem.subs" :index="subItem.index" :key="subItem.index">
                <template #title>{{ subItem.title }}</template>
                <el-menu-item v-for="(threeItem, i) in subItem.subs" :key="i" :index="threeItem.index">
                  {{ threeItem.title }}
                </el-menu-item>
              </el-submenu>
              <el-menu-item v-else :index="subItem.index" :key="subItem.index">{{ subItem.title }}
              </el-menu-item>
            </template>
          </el-submenu>
        </template>
        <template v-else>
          <el-menu-item :index="item.index" :key="item.index">
            <i :class="item.icon"></i>
            <template #title>{{ item.title }}</template>
          </el-menu-item>
        </template>
      </template>
    </el-menu>
  </div>
</template>

<script setup>
import {computed, watch} from "vue";
import {useStore} from "vuex";
import {useRoute} from "vue-router";
import {useI18n} from "vue-i18n";

const i18n = useI18n();

const items = [
  {
    icon: "el-icon-lx-home",
    index: `/dashboard`,
    title: "系统首页",
  },
  {
    icon: "el-icon-lx-cascades",
    index: `/users`,
    title: "用户列表",
  },
  {
    icon: "el-icon-lx-copy",
    index: `/mail`,
    title: "用户邮件",
  },
  {
    icon: "el-icon-lx-calendar",
    index: "3",
    title: "表单相关",
    subs: [
      {
        index: `/message`,
        title: "消息发送",
      },
      {
        index: `/upload`,
        title: "文件上传",
      }
    ],
  },
  {
    icon: "el-icon-lx-share",
    index: `/history`,
    title: "历史记录",
  }
];

const route = useRoute();

const onRoutes = computed(() => {
  return route.path;
});

const store = useStore();
const collapse = computed(() => store.state.collapse);
</script>

<style scoped>
.sidebar {
  display: block;
  position: absolute;
  left: 0;
  top: 70px;
  bottom: 0;
  overflow-y: scroll;
}

.sidebar::-webkit-scrollbar {
  width: 0;
}

.sidebar-el-menu:not(.el-menu--collapse) {
  width: 250px;
}

.sidebar > ul {
  height: 100%;
}
</style>
